Re: Calculating MOD


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Re: Calculating MOD



Why not just use the MOD statement?  AFAIK it's on all the calculators, I
know for a fact it's on the 85.

At 01:14 AM 11/20/97 -0500, Thomas J. Hruska wrote:
>As far as I know, none of the TI-xx calcs have support for modular
>arithmetic.  For those of you who don't know what that is, you learned it
>in 2nd grade.  It is basically a fancy word for the remainder from integer
>division (e.g. when doing 6/4, the quotient is 1 and the remainder is 2).
>I was doing this in precalc (have no idea why) and I derived the formula
>r=n-d*int(n/d) as the formula for r = n MOD d.  I have already used this
>formula to speed up quite a few programs and I even devised a method of
>making a ?x99 matrix act like a large list using a few changes in the
>formula.  I have made a proof of this formula, but I'll only send it to
>those who want it.
>
>Remember, n-d*int(n/d)  is equivalent to n MOD d.
>
>
>                 Thomas J. Hruska -- thruska@tir.com
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